Means for keeping knitting machines clean



March 25, 1930. OL'SEIFERT 1,752,207

MEANS FOR KEEPING KNITTING MACHINES CLEAN Filed Aug. 17. 1928 Z 0140 Jew/1* Patented Mar. 25, 1930 UNITED STATES OTTO SEIFERT, OF

BURGSTADT, GERIVIANY, ASSIGNOR' 'I'O MABATLI SOCIETE ANONYME,

M 015 GENEVA SWITZERLAND, A SWISS (.YOIIIPAlYl'Y MEANS FOR KEEPING: KNITTING MAGHLTNES CLEAN Application filed August 17, 1928, Serial No.

The present invention relates to improvements in means for keeping clean circular knitting machines having rotating yarn feeding means.

The fibrous material of the threads for knitting machines leaves, at certain places, short threads, dust and other dirt in the form of small particles, when the machine is operated, and in this way the machine is made dirty. These dirt particles settle at certain places as so-called flock wool and fall from time to time on to the articles or in moving parts of the machine causing imperfect working. Blowing out by means of bellows,

which is often employed, for the most part only'alters the disposition of the dust due to the whirling action, but does not eifect much cleansing.

The present invention has for its object to remedy this defect by so mounting the direct suction applying means such as suction nozzles that they are rotatable with the yarn feeding means and are thereby enabled effectively to remove all dust, dirt, fibre and the like from the operative parts of the machine.

I In order that the invention may be well understood two preferred embodiments thereof are illustrated by way of examples only in the accompanying drawings, in which of a portion of a circular warp knitting machine having a suction device mounted thereon. I V

Fig. 2 is a section through an annular suctiontube showing a method of mounting'the nozzles thereon. I I

Fig. 3 is a plan of a portion of the suction tube shown in Fig. 2.

Fig. 4 is a section through the needle ring and the end of the nozzle.

Fig. 5 is a side elevation partly in section of aportion of a circular' knitting machine having a modified form of suction device mounted thereon. i

Referring to the drawings 1 is the circular stand with the up and down moving needle ring 2, which carries the needles 3. The stand 1 is carried by columns or feet 4, on which rollers 5 are mounted, on which latter the ring 6 with the thread bobbin carriers 7 runs. On

Fig. 1 is a side elevation partly in section 300,3Q1, andin Germany August 22, 1927.

the feet 4, according to Figures 1, 2, 3 and 4, atubular ring 8 is fixed, which surrounds the circular stand 1, and is provided with a circumferentiallydisposed series of slits or holes 9, which are hermetically covered by a circular cover 12 which carries one or more suction tubes 11. The tubes 11 have their mouth pieces directed towards the parts of the machine to be kept clean and are supported on the needle ring 2 by means of projecting' supports 11 A suction tube 13, brought to the tubular ring 8, leads from an exhauster, not shown. By means of the thread spool carriers the tubes 11 are carried round the machine by the surrounding ring 6, and so '13 continuously apply suction to the parts to be kept clean.

In the embodiment illustrated in Figure 5 an electrically operated exhauster 14 having a closed dust container 15 is mounted on a revolving bobbin carrier 7. The suction tube 11 is mounted directly on the eXhauster 14. The exhauster 14 obtains the current necessary for its operation from two annular coni ductors 16 mounted on and surrounding the stand 1. The dust container 15 can be removed from time to time to remove the dust which has accumulated therein.

What I claim as my invention is r having rotating yarn feeding means, a suction device for removing dust, fibre andthe like comprising an air exhauster, and meansfor directly applying suction produced by said exhauster to parts of the knitting machine to Q5 be kept cleanv the said means being rotatable with the yarn feeding means; I

2. In a circular warp knitting machine having rotating yarn feeding means, a suction device for removing dust, fibre and the like comprising. an air exhauster, and nozzles connected thereto for directly applying suction to parts of the knitting machine to be kept clean, the said nozzles being secured to the rotating yarn feeding means so as to rotate in unison therewith.

3. In a circular warp knitting machine having rotating yarn feeding means, a suction device for removing dust, fibre and the like comprising an air exhauster rotatable with e 1. In a circular warp knitting machine said yarn feeding means, and means for directly applying suction produced by said exhauster to parts of the knitting machine to be kept clean, the said means being connected to said exhauster and being rotatable in unison therewith and with the yarn feeding means.

4. In a circular Warp knitting machine, having rotating yarn feeding means a suction device for removing dust, fibre and the like, comprising an electrically operated exhauster having a suction nozzle, the said exhauster and nozzle being connected to the yarn feed ing means so as to rotate in unison therewith.

In witness WhereofI afix my signature.

OTTO SEIFERT.

CERTEFIGATE OF (JGRRECTION.

Patent No. 1,752,207. Granted March 25, 1930, to

()TTQ SEIFERT.

It is hereby certified that the name of the assignee in the above numbered patent was erreneously written and printed as "Maratli Societe Anohyme", whereas said name sheuld have been written and printed as "Maratti Seeiete Anonyme, as shown by the records of assignments in this office; and that the said Letters Patent sheuld be read with this correction therein that the same may eeeierm to the record 0! the ease in the Patent ()ttiee.

Signed and sealed this 20th day of May, A. D. 1930.

M. J. Meere, (Seal) Acting Commissioner of Patents. 

